Protective casing for portable handheld electronic device



FIG. 1 is a rear perspective view of a protective casing for portable handheld electronic device;

FIG. 2 is a front view of thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a protective casing for portable handheld electronic device, as shown and described. 